Search found 77 matches

by Geonerd
Thu Feb 04, 2021 4:44 pm
Forum: Computer Chess Club: General Topics
Topic: NNs seem to solve the Gusev Qxe5!! easily.
Replies: 29
Views: 5132

Re: NNs seem to solve the Gusev Qxe5!! easily.

AB engines have troubles with the initial position. However if you play out Qxe5 fxe5 Rf1 it looks like most of them still have problems! With black to move many still show a draw score and have trouble seeing they are losing. So is there another sacrifice or zugwang position deeper in the analysis...
by Geonerd
Thu Jan 07, 2021 1:49 am
Forum: Computer Chess Club: General Topics
Topic: BMI2 vs AVX2 (Stockfish versions)
Replies: 8
Views: 1521

Re: BMI2 vs AVX2 (Stockfish versions)

Yup. Configure your GUI to display NPS and run both executables on a given position.

You might also try some of the SF Dev compiles at https://abrok.eu/stockfish/ There has been a fair bit of code optimization since SF-12 was released.
by Geonerd
Sun Dec 27, 2020 10:51 pm
Forum: Computer Chess Club: General Topics
Topic: Verify integrity of Syzygy TB with MD5
Replies: 15
Views: 1491

Re: Verify integrity of Syzygy TB with MD5

This works well for me.
http://getmd5checker.com/

https://github.com/gurnec/HashCheck/releases/tag/v2.4.0 looks pretty good, and is supposedly open source.
by Geonerd
Tue Nov 17, 2020 8:54 pm
Forum: Computer Chess Club: General Topics
Topic: Apple New Mac Mini
Replies: 4
Views: 976

Re: Apple New Mac Mini

You've seen chess benchmarks? Please share the link.

Overall, performance per watt seems very competitive with AMD and Intel designs.
by Geonerd
Fri Nov 06, 2020 3:40 am
Forum: Computer Chess Club: General Topics
Topic: Zen3 supports fast PEXT aka BMI2
Replies: 11
Views: 1750

Re: Zen3 supports fast PEXT aka BMI2

IPMan has a few benchmarks up. The BMI2 compiles are fractionally faster than POP, and the 5xxx series are substantially faster than the corresponding 3xxx models. http://ipmanchess.yolasite.com/amd---in ... -bench.php
by Geonerd
Fri Sep 04, 2020 11:42 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish 12 has arrived!
Replies: 32
Views: 9327

Re: Stockfish 12 has arrived!

Can someone with an AMD Bulldozer or Piledriver series CPU please run some benchmarks on the Modern/Popcnt and Base'/x64 compiles? Popcnt and above use SSSE3 in the NNUE code, which my 6100 series Opteron chips cannot digest. I'm stuck running the slowest executable. The CPUs can be upgraded for che...
by Geonerd
Sat Aug 08, 2020 7:16 pm
Forum: Computer Chess Club: General Topics
Topic: this will be the merge of a lifetime : SF 80 Elo+
Replies: 121
Views: 26316

Re: this will be the merge of a lifetime : SF 80 Elo+

Amen - I love it when I see an atheist quoting the Bible ... an old friend of my said this once - lets just say the atheist view is correct - well ,when we die, we die and and we all go back to dust . But just say there is a God, then atheist gets to spend his eternal years in hell and the rest of ...
by Geonerd
Sun Jul 12, 2020 3:40 am
Forum: Computer Chess Club: General Topics
Topic: Cfish is back!
Replies: 44
Views: 6254

Re: Cfish is back!

syzygy wrote:
Sat Jul 11, 2020 11:36 pm

I have now released Cfish 11a:
https://github.com/syzygy1/Cfish/releases/tag/cfish_11a
Thank you for the executables! :)
by Geonerd
Tue May 19, 2020 9:13 am
Forum: Computer Chess Club: General Topics
Topic: Complete engine configuration
Replies: 40
Views: 9202

Re: Complete engine configuration

The ability to play two engines against one another with asymmetric time controls is handy.